    // 添加全局站点信息
    var BASE_URL = '/interpolation/js';

    jQuery(function() {
        var $ = jQuery,    // just in case. Make sure it's not an other libaray.

            $wrap = $('#uploader'),

            // 图片容器
            $queue = $('<ul class="filelist"></ul>')
                .appendTo( $wrap.find('.queueList') ),

            // 状态栏，包括进度和控制按钮
            $statusBar = $wrap.find('.statusBar'),

            // 文件总体选择信息。
            $info = $statusBar.find('.info'),

            // 上传按钮
            $upload = $wrap.find('.uploadBtn'),

            // 没选择文件之前的内容。
            $placeHolder = $wrap.find('.placeholder'),

            // 总体进度条
            $progress = $statusBar.find('.progress').hide(),

            // 添加的文件数量
            fileCount = 0,

            // 添加的文件总大小
            fileSize = 0,

            // 优化retina, 在retina下这个值是2
            ratio = window.devicePixelRatio || 1,


            // 可能有pedding, ready, uploading, confirm, done.
            state = 'pedding',

            // 所有文件的进度信息，key为file id
            percentages = {},

            supportTransition = (function(){
                var s = document.createElement('p').style,
                    r = 'transition' in s ||
                        'WebkitTransition' in s ||
                        'MozTransition' in s ||
                        'msTransition' in s ||
                        'OTransition' in s;
                s = null;
                return r;
            })(),

            // WebUploader实例
            uploader;

        if ( !WebUploader.Uploader.support() ) {
            alert( 'Web Uploader 不支持您的浏览器！如果你使用的是IE浏览器，请尝试升级 flash 播放器');
            throw new Error( 'WebUploader does not support the browser you are using.' );
        }

        // 实例化
        uploader = WebUploader.create({
            pick: {
                id: '#filePicker',
                label: '点击选择文件'
            },
            dnd: '#uploader .queueList',
            paste: document.body,

            // swf文件路径
            swf: BASE_URL + '/Uploader.swf',
        	
            disableGlobalDnd: true,

            chunked: true,
            server: server_context+'interpolation/file_uploadserver.jsp',// 这里访问后台的处理逻辑
            fileNumLimit: 5,// 一次最对上传5个
            fileSizeLimit: 200 * 1024 * 1024,    // 200 M
            fileSingleSizeLimit: 200 * 1024 * 1024    // 200 M
        });
        

        // 添加“添加文件”的按钮，
        uploader.addButton({
            id: '#filePicker2',

            label: '继续添加'
            	
        });
        var i =0;
        uploader.on( 'uploadSuccess', function( file, response) {
        	var fileurl = encodeURI(response.data.src);
        	var filepath = topath(response.data.filePath);
        	var resume_url = $("#upInfo").val();
            var resume_name = $("#upInfoname").val();
            var resume_path = $("#upInfopath").val();
            var upid = "up"+i;
            if(resume_name == null || resume_name == "" || resume_url == null || resume_url == "" || resume_path =="" || resume_path == null){
            	$("#upInfo").val(fileurl); 
                $("#upInfoname").val(file.name);
                $("#upInfopath").val(response.data.filePath);
                $("#content_file").css("display","");
                $("#file_upload").append("<p id="+upid+" class='recruitAcc'><a href="+fileurl+" target='_blank'>"+file.name+"</a>&nbsp;&nbsp;&nbsp;&nbsp;<a href='#' class='delete' onclick='delectfile("+upid+","+filepath+")'> X </a></p>");
            }else{
            	$("#upInfo").val(resume_url+'^'+fileurl); 
                $("#upInfoname").val(resume_name+'^'+file.name);
                $("#upInfopath").val(resume_path+'^'+response.data.filePath);
                $("#content_file").css("display","");
                $("#file_upload").append("<p id="+upid+" class='recruitAcc'><a href="+fileurl+" target='_blank'>"+file.name+"</a>&nbsp;&nbsp;&nbsp;&nbsp;<a href='#' class='delete' onclick='delectfile("+upid+","+filepath+")'> X </a></p>");
            }
            i++;
            removeFile(file);
            uploader.removeFile( file );

        });
       
        // 当有文件添加进来时执行，负责view的创建
        function addFile( file ) {
            var $li = $( '<li id="' + file.id + '">' +
                '<p class="imgWrap"></p>'+ //当添加文件时的，缩略图
                '</li>' ),

                $btns = $('<div class="file-panel">' +
                    '<span class="cancel">删除</span></div>').appendTo( $li ),//缩略图上方的图片按钮
                    
                
                $wrap = $li.find( 'p.imgWrap' ),//获取缩略图元素
                
                $info = $('<p class="error"></p>'),//定义异常

                showError = function( code ) { //当文件上传异常时触发
                    switch( code ) {
                        case 'exceed_size':
                            text = '文件大小超出';
                            break;

                        case 'interrupt':
                            text = '上传暂停';
                            break;

                        default:
                            text = '上传失败，请重试';
                            break;
                    }

                    $info.text( text ).appendTo( $li );
                };

            if ( file.getStatus() === 'invalid' ) {//获取文件当前状态，当文件状态为无效时。
                showError( file.statusText );
            } else {
            	var img = $('<p>'+file.name+'</p>');
            	$wrap.empty().append( img ); 
                percentages[ file.id ] = [ file.size, 0 ];
                file.rotation = 0;
            }

            file.on('statuschange', function( cur, prev ) {//对上传状态变化的一系列处理
                if ( prev === 'progress' ) {//上传中
                } else if ( prev === 'queued' ) {//已经进入队列, 等待上传
                    $li.off( 'mouseenter mouseleave' );
                    $btns.remove();
                }

                // 成功
                if ( cur === 'error' || cur === 'invalid' ) {//当异常或者无效时
                    showError( file.statusText );
                    percentages[ file.id ][ 1 ] = 1;
                } else if ( cur === 'interrupt' ) {//上传中断，可续传。
                    showError( 'interrupt' );
                } else if ( cur === 'queued' ) {//已经进入队列, 等待上传
                    percentages[ file.id ][ 1 ] = 0;
                } else if ( cur === 'progress' ) {//上传中
                    $info.remove();
                } else if ( cur === 'complete' ) {//上传完成。
                    $li.append( '<span class="success"></span>' );
                }

                $li.removeClass( 'state-' + prev ).addClass( 'state-' + cur );
            });

            $li.on( 'mouseenter', function() {//当鼠标指针穿过元素时触发。
                $btns.stop().animate({height: 30});
            });

            $li.on( 'mouseleave', function() {//当鼠标指针离开元素时触发。
                $btns.stop().animate({height: 0});
            });

            $btns.on( 'click', 'span', function() {//当点击、拖拉上传时触发
            	debugger;
                var index = $(this).index(),
                    deg;
                
                switch ( index ) {//0.移除 
                    case 0:
                        uploader.removeFile( file );
                        return;
                }

                if ( supportTransition ) {
                    deg = 'rotate(' + file.rotation + 'deg)';
                    $wrap.css({
                        '-webkit-transform': deg,
                        '-mos-transform': deg,
                        '-o-transform': deg,
                        'transform': deg
                    });
                } else {
                    $wrap.css( 'filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation='+ (~~((file.rotation/90)%4 + 4)%4) +')');
                    // use jquery animate to rotation
                    $({
                    	rotation: rotation
                     }).animate({
                        rotation: file.rotation
                     },{
                        easing: 'linear',
                        step: function( now ) {
                        	now = now * Math.PI / 180;
                            var cos = Math.cos( now ),
                                sin = Math.sin( now );
                            $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')");
                        }
                    });
                }

            });
            $li.appendTo( $queue );
        }
        
        
        // 负责view的销毁
        function removeFile( file ) {//移除上传队列
            var $li = $('#'+file.id);
            delete percentages[ file.id ];
            updateTotalProgress();
            $li.off().find('.file-panel').off().end().remove();
        }

        function updateTotalProgress() {
            var loaded = 0,
                total = 0,
                spans = $progress.children(),
                percent;
            $.each( percentages, function( k, v ) {
                total += v[ 0 ];
                loaded += v[ 0 ] * v[ 1 ];
            } );
            percent = total ? loaded / total : 0;
            spans.eq( 0 ).text( Math.round( percent * 100 ) + '%' );
            spans.eq( 1 ).css( 'width', Math.round( percent * 100 ) + '%' );
            updateStatus();
        }

        function updateStatus() {//显示展示文件数据及大小
            var text = '', stats;

            if ( state === 'ready' ) {
                text = '选中' + fileCount + '文件，共' +
                    WebUploader.formatSize( fileSize ) + '。';
            } else if ( state === 'confirm' ) {
                stats = uploader.getStats();
                if ( stats.uploadFailNum ) {
                    text = '已成功上传' + stats.successNum+ '文件，'+
                        stats.uploadFailNum + '个文件上传失败，<a class="retry" href="#">重新上传</a>失败文件或<a class="ignore" href="#">忽略</a>';
                }

            } else {
                stats = uploader.getStats();
                text = '共' + fileCount + '个（' +
                    WebUploader.formatSize( fileSize )  +
                    '），已上传' + stats.successNum + '个';

                if ( stats.uploadFailNum ) {
                    text += '，失败' + stats.uploadFailNum + '个';
                }
            }

            $info.html( text );
        }
        
        layui.use(['layer'], function(){
        });
        function setState( val ) {
        	debugger;
            var file, stats;

            if ( val === state ) {
                return;
            }

            $upload.removeClass( 'state-' + state );
            $upload.addClass( 'state-' + val );
            state = val;

            switch ( state ) {
                case 'pedding':
                    $placeHolder.removeClass( 'element-invisible' );
                    $queue.parent().removeClass('filled');
                    $queue.hide();
                    $statusBar.addClass( 'element-invisible' );
                    uploader.refresh();
                    break;

                case 'ready'://将文件添加到队列时
                    $placeHolder.addClass( 'element-invisible' );
                    $( '#filePicker2' ).removeClass( 'element-invisible');
                    $queue.parent().addClass('filled');
                    $queue.show();
                    $statusBar.removeClass('element-invisible');
                    uploader.refresh();
                    break;

                case 'uploading'://上传时
                    //$( '#filePicker2' ).addClass( 'element-invisible' );
                    $progress.show();
                    $upload.text( '暂停上传' );
                    break;

                case 'paused':
                    $progress.show();
                    $upload.text( '继续上传' );
                    break;

                case 'confirm'://成功上传时
                    $progress.hide();
                    //$upload.text( '开始上传' ).addClass( 'disabled' );
                    $upload.text( '开始上传' );
                    stats = uploader.getStats();
                    if ( stats.successNum && !stats.uploadFailNum ) {
                        setState( 'finish' );
                        return;
                    }
                    break;
                case 'finish'://结束本次上传
                    stats = uploader.getStats();
                    if ( stats.successNum ) {
                    	layer.msg('上传成功');
                    } else {
                        // 没有成功的图片，重设
                        state = 'done';
                        location.reload();
                    }
                    break;
            }

            updateStatus();
        }

        uploader.onUploadProgress = function( file, percentage ) {
            var $li = $('#'+file.id),
                $percent = $li.find('.progress span');

            $percent.css( 'width', percentage * 100 + '%' );
            percentages[ file.id ][ 1 ] = percentage;
            updateTotalProgress();
        };

        uploader.onFileQueued = function( file ) {
            fileCount++;
            fileSize += file.size;

            if ( fileCount === 1 ) {
                $placeHolder.addClass( 'element-invisible' );
                $statusBar.show();
            }

            addFile( file );
            setState( 'ready' );
            updateTotalProgress();
        };

        uploader.onFileDequeued = function( file ) {
            fileCount--;
            fileSize -= file.size;

            if ( !fileCount ) {
                setState( 'pedding' );
            }

            removeFile( file );
            updateTotalProgress();

        };

        uploader.on( 'all', function( type ) {
            var stats;
            switch( type ) {
                case 'uploadFinished':
                    setState( 'confirm' );
                    break;

                case 'startUpload':
                    setState( 'uploading' );
                    break;

                case 'stopUpload':
                    setState( 'paused' );
                    break;

            }
        });

        uploader.onError = function( code ) {
        	layer.msg(code);
        };

        $upload.on('click', function() {
            if ( $(this).hasClass( 'disabled' ) ) {
                return false;
            }

            if ( state === 'ready' ) {
                uploader.upload();
            } else if ( state === 'paused' ) {
                uploader.upload();
            } else if ( state === 'uploading' ) {
                uploader.stop();
            }
        });

        $info.on( 'click', '.retry', function() {
            uploader.retry();
        } );

        $info.on( 'click', '.ignore', function() {
            alert( 'todo' );
        } );

        $upload.addClass( 'state-' + state );
        updateTotalProgress();
    });
